Rocket Motors
Rocket motors are the part of the rocket which provides the thrust.
Anchors
Anchors help prevent the nozzle and end-plug from coming out during the burn.
Thermal Sleeves
Thermal sleeves help prevent the rocket motor casing from rupturing during the burn due to heat. This is especially true for PVC rocket motors.
Finished Motor
You can view the motors I made for either rockets, experiments, or even the odd skatebaord on the Rocket Projects page.